The MTBF for standard TECs is at least 200,000 hrs, which is based on relatively stable running conditions, with several times ON/OFF per day during operation. However, in other applications, the power is frequently on/off, especially in constant temperature controller application. There is a test for research the influence of the on/off switch cycle to the TECs in a constant temperature. Install the TEC module with silicon grease between a couple of convector radiators. The load time of the current is 7.5s, and the breaking time is 7.5s, thus a cycle is 15s. During the cycle, monitor the input current of each TEC module. The mark for failure is that the resistance of TECs increases, resulting in the current decreases. The test takes about 25,000 hrs with at least 6 millions of cycles. Under this condition, the MTBF is 125,000 hrs, or 3*107 times of on/off switch cycle.(more)

With the popularization of fuzzy logic technology, a lot of kitchen equipment, such as microwave oven, electric cooker, disinfection cabinet and so on, have adopted NTC thermistor temperature sensor, which has high sensitivity, heat shock resistance, no pollution and some other advantages. The NTC thermistor temperature sensor can realize the set of program control, heating, heat preservation, cooling, power failure and other functions.(more)

Thermoelectric generator (TEG) is built based on Seebeck effect to convert heat directly into electricity. In the open circuit composed with two different conductors, if there is temperature difference on the two contact points of the conductor, electromotive force will come into being in this open circuit. The polarity of the output voltage depends on the polarity of the temperature difference on both ends of the TEG. If the hot end and the cold end of TEG are swapped over, the polarity of the output voltage will change.(more)

ATH100K1R25 series thermistors have three versions, ATH100K1R25, ATH100K1R25T70 and ATH100K1R25T70S. ATH100K1R25 has two bare leads; ATH100K1R25T70 has two leads covered with high temperature plastic tubing, non-sealed; and ATH100K1R25T70S comes with leads covered with plastic tubing, sealed.(more)

AAS20A5V is a kind of high efficiency AC input 20A 5V laser driver, which is used to drive 0~20A laser diode. 0~20A output current can be set by setting 0~2.5V analog voltage. It has been widely used for driving fiber diode, diode laser rod and so on. The physical figure of AAS20A5V laser driver is shown in Figure 1.(more)

During the cooling process of thermoelectric cooler (TEC), the dissipating effect has direct effect on the cooling performance. The bad performance of heat transfer will cause the temperature rise on hot-side, thus the cooling capacity will reduce a lot.(more)

Our company (ATI) has many kinds of high stability miniature thermistors, which can be used for temperature control of TEC controller, as shown in Figure 1. Thermistors produced by us have high reliability, high resistance accuracy, long service lifetime and some other advantages.(more)

Super SMT component enclosure is a US-patented product, which was designed and produced by Analog Technology in 1997. Although this enclosure was put into market in 1998, it is still very popular among electronic designers today. The physical photo of super kit enclosure is shown in Figure 1.(more)

NTC（Negative Temperature Coefficient）is a kind of thermistors. With the increase of temperature, the resistance of NTC thermistor will decrease exponentially. The following photo is a kind of NTC thermistors.(more)

For most of electronic designers, it's not easy to sort out the tiny parts like SMT resistors, capacitors and inductors. Usually people needs these parts of many different values, so it is a huge quantity and will occupy a large place. Now, there is a smart solution, inductor kits.(more)